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⋆˚𝜗𝜚˚⋆
Organelle
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Organelle by Day
Meiosis Two
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Prophase II
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Story
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Prophase II: Part 1:
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Chromosome Condensation:
The chromosomes, which may have decondensed slightly at the end of telophase I, condense again into visible, compact structures
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Prophase II: Part 2:
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Nuclear Envelope Breakdown:
If the nuclear envelope reformed at the end of telophase I, it breaks down again, allowing the spindle fibers to access the chromosomes
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Prophase II: Part 3:
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Spindle Formation:
A new spindle apparatus forms, with microtubules extending from the centrosomes, which have migrated to opposite poles of the cell
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Prophase II: Part 4:
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Centrosome Movement:
The centrosomes, which duplicated during interphase I, migrate to opposite poles of the cell, establishing the spindle poles for the second meiotic division
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Prophase II: Part 5:
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Two Haploid Cells:
Prophase II occurs in two cells, each produced from the first meiotic division, and each containing a haploid set of chromosomes (one chromosome from each homologous pair)
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Metaphase II
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Story
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Metaphase II: Part 1:
Chromosome Alignment:
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Metaphase II: Part 2:
Microtubule Attachment:
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Metaphase II: Part 3:
Spindle Formation:
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